/*
 * Copyright 2019 The Getty Project
 *
 * The Getty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package com.gettyio.core.pipeline;

import com.gettyio.core.channel.ChannelState;

/**
 * 用于流转责任链的执行者
 */
interface ChannelHandler {

    /**
     * 设置ctx
     *
     * @param ctx
     */
    void setChannelHandlerContext(ChannelHandlerContext ctx);

    /**
     * 获取ctx
     */
    ChannelHandlerContext channelHandlerContext();

    /**
     * 流转
     *
     * @param ctx
     * @param in
     * @throws Exception
     */
    void channelProcess(ChannelHandlerContext ctx, ChannelState channelState, Object in) throws Exception;

}
